Oil-filter.



J. E. MUNYAN, DECD.

M. n. MUNYAN, ADMINISTRATRIX.

OIL FILTER.

APPLICATION FILED MAR.20,1912.

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JAMES E. MUNYAN, DECEASED, LATE OF JYIANTUA, NEW JERSEY, BY MARYH. 'MUNYAN, ADMINISTRATRIX, OF MANTUA, NEW JERSEY. f

OIL-FILTER.

Specification of Letters Patent.

Application filed March 20, 1912. Serial No. 684,950.

To all whom it may concern:

Be it known that JAMES E. MUNYAN, deceased, late a citizen of the United States, residing at Mantua, in the county of Gloucester and State of New Jersey, did invent new and useful Improvements in Oil-Filters, and that MARY H. ll/IUNYAN, administratrix of the said JAMES E. ll/I'UNYAN, deceased, does hereby declare the following to be a full,

clear, and exact specification of the same.

The invention relates to improvements in oil filters, the object of the invention being to provide an improved filter which is adapted for use in connection with lubricating oils and the like, so that such oils ma be used over and over again.

A further object is to provide in an oil filter, an improved arrangement of screens immersed in Water up through which the oil must pass by reason of its lighter specific gravity, and be thoroughly cleansed by the water, and the heavier particles held back by the screens. A further object is to provide a filter com- 2 prising a plurality of tanks through which the oil is passed in series from the top of one to the bottom of the other, and provide improved means for regulating the flow of oil and water-to and from the tanks.

With these and other objects in view, the invention.- cohsistsin certain novel features of construction and combinations and arrangements' of-parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1, is a View in side elevation illustrating the improved filter. Fig, 2, is a view in elevation of the opposite side of the filter. Fig.

3, is a view in vertical longitudinal section, and Fig. 4:, is a view in horizontal section on the line 44; of Fig. 3.

The filter comprises a rectangular casing 1 supported upon feet 2, and divided by a vertical partition 3 into two filtering tanks 4, and 5, respectively. The bottoms of these tanks 4, and 5, converge downwardly to a central point as shown, and they are connected by branch pipes 6 and 16, and with an inclined pipe 7. This pipe 7 constitutes a supply passage through which oil passes to the first filter 4, and also constitutes a.

drain from the filter to the sewer or other point of discharge.

A check valve 8 is provided in the pipe 7 so as to permit the flow in one direction only, and this pipe is adapted to communicate with the drip pan of an engine or other suitable machinery, so that the oil which accumulates in the pan, may flow to the filter and be thoroughly cleaned. A vertical pipe 9 also communicates with pipe 7, and is provided at its upper end with a funnel shaped hopper l0 mto which oil may be poured from any suitable vessel. This hopper 10 is normally closed by a cover 11, and is provided with a plurality of screens 13 connected by an eye-bolt 14. The screens 13 are supported in parallelism, the u per screen having the largest openings, an the lowest screen the smallest, so that the larger particles of foreign matter will be caught by these screens before the oil passes to the filter.

A cock 15 is provided in advance of the pipe 6 to control the tlow of oil to the filter,

and a cock 17 is provided in pipe 7 between pipes 6 and 16 to close this passage.

In tanks 4, and 5, a vertical series of superimposed-screens 18 are located. These screens are alike, and they all incline downwardly from a central point and have suitable feet 19 at their corners on their lower faces, so as to support the screens one upon the other, and hold them the proper distance apart. The lowest screens have the largest openings therein, and the openings in the screens above decrease in diameter, so that the top screens have relatively small openings therein. \y

In the tanks 4, and 5, water is provided, and is maintained at the desired level, the water level in tank 4; being higher than the water level in tank 5. The oil, of course, by reason of its lighter specific gravity, will rise to the top of the water, and as it rises to the top of the water in tank 4, it will pass downwardly through a pipe 20 which communicates with pipe 16, so that the oil passing up through tank 4: overflows and passes up through tank 5 from which it is drawn off through a cook 21. Between this cook 21, and the outlet foi" oil in tank 5, a glass tube 22 is located, the passage therethrough being controlled by cocks 23. This glass tube, of course, contains oil, and indicates its condition at all times. A shelf 24; is provided below cock 21, and is adapted to support a receptacle% to receive the filteredoil. If this oil is not sufficiently fil- Patentcd Aug. 13,1912..

tered it may be poured into the hopper l0 and again pass through the filter.

Inside of the tanks 4:, and 5, vertically positioned water pipes 26 are located, and these pipes extend down to the lower portion of the tanks so as to receive the water below the oil level. Cocks 27 and 28 con nect with the upper ends of these pipes, and are adapted to discharge the water into funnel shaped mouths 29 secured to a pipe 30.

This pipe 30 communicates with the lower end of pipe 7, and a cock 31 is provided in this lower end of the pipe 7 to control the flow of water therethrough.

.To clean out the tanks, a water supply pipe 32 is provided and communicates with a vertical pipe 32 having cocks 33 and 34 therein above and below the point of juncture with said pipe 31. 'The upper and lower ends of the pipe 32 are connected by branch pipes 35 and 36 respectively with the upperand lower ends of the tanks, so that" when the cocks 33 and 34 are opened, these tanks may be thoroughly flushed with water. By .the different arrangement. of cocks, water may flow into the bottom and out of the top or into the top and out ofthe bottom, or may overflow through the cocks 27 as will be readily understoo During the ordinary filtering operation, cocks 17,31, 27, and 28 are closed. The oil passes upwardly through the water and screens in tank a, thence down'through pipe 20 and thence upwardly through the tank 20, and out through the cock 21. *Both of these tanks may be quickly emptied by openingtcocks 17 and 31, or the water may be drawn out through the cocks 27 whenever the level of liquid in the tanks is above these points.

v To flush out the tanks, the cooks 33 and '34 are open, first one and then the other,

noeasor side by side, filtering means in said tanks, an inclined pipe extending below; the tanks, branch pipes connecting the lower'end of the tanks with said inclined pipe, a cock in the inclined pipe between the saidjastmentioned pipes, a pipe connecting therapper end of one tank with the lower end of the other, whereby the oil from one tank is compelled to pass to the bottom of the other, means for drawing 0d the oil from the lastmentioned tank, means for drawing the water from the lower ends of the tanks, a water supply pipe, a vertical pipe communicating with said supply pipe, cocks in said vertical pipe, and branch pipes connecting the vertical pipe with the upper and lower portions of the tanks, substantially as de-- scribed. I

2. A filter comprising two tanks located side by side, filtering means in said tanks, an inclined pipe extending below the tanks, branch pipes connectin the lower end of the tanks with said inclined pipe, a cock in the inclined pipe between the said last-mentioned pipes, a pipe connecting the upper end of one tank with the lower end of the other, whereby the oil from one tank is compelled to pass to the bottom of the other, means for drawing ofi; the oil from the last-mentioned tank, a vertical pipe cone municating with the inclined pipe at a point in advance of the filter, a hopper on the rip-- per end of said vertical pipe constituting an oil entrance receptacle, and a plurality of screens in said hopper, means for draw ing the water from the lower ends of tanks, a water supply pipe, a vertical pipe communicating with said supply pipe, cocks in said vertical pipe, and branch pipes connecting the vertical pipe with the upper and lower portions of the tanks, substantially as described.

In testimony whereof I have signed my 9 name to this specification in the two subscribing witnesses.

. u 1"1 H. ran, Administratfiw of the, estate of James E,

.Munyan, deceased. Witnesses:

EMMA I. WEATW CHARLES E. Po'rrs.

presence of 

